Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
x^2 + y^2 = 1 - (121665/121666)*x^2*y^2
x^2 + y^2 = 1 - (121665/121666)*x^2*y^2
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
